2006
DOI: 10.5194/acpd-6-8155-2006
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In-situ measurement of reactive hydrocarbons at Hohenpeissenberg with comprehensive gas chromatography (GCxGC-FID): use in estimating HO and NO<sub>3</sub>

Abstract: Abstract. During a field campaign at the Meteorological Observatory Hohenpeissenberg (MOHp) in July 2004, VOCs were measured using GCxGC-FID. Comparison to routinely made GC-MS measurements showed good agreement for a variety of anthropogenic and biogenic ambient VOCs ranging in concentration from below the detection limit (0.1 pmol mol−1) to 180 pmol mol−1. Pronounced diurnal cycles were found for both the biogenic and anthropogenic compounds, driven for the most part by the daily rise and fall of the boundar… Show more

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Cited by 2 publications
(2 citation statements)
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“…A similar seasonal constancy was observed in a subsequent application of the approach, in this case to estimate the OH concentration based on the known loss rate of radon (Williams et al, 2001). Even where there are no 'known' lifetimes available (removal of Rn), the approach has been used to estimate OH concentrations in continental (Bartenbach et al, 2007;Karl et al, 2001) and coastal air (Williams et al, 2000), using lifetimes based on removal rates through photolysis, reaction with OH and reaction with ozone (O 3 ). Necessarily, the interpretation of the relationship assumes common sources of the trace gases used, and sufficiently slow reaction rates that measured concentrations at the measurement site are above the limit of detection of the measurement system.…”
Section: Theorymentioning
confidence: 57%
“…A similar seasonal constancy was observed in a subsequent application of the approach, in this case to estimate the OH concentration based on the known loss rate of radon (Williams et al, 2001). Even where there are no 'known' lifetimes available (removal of Rn), the approach has been used to estimate OH concentrations in continental (Bartenbach et al, 2007;Karl et al, 2001) and coastal air (Williams et al, 2000), using lifetimes based on removal rates through photolysis, reaction with OH and reaction with ozone (O 3 ). Necessarily, the interpretation of the relationship assumes common sources of the trace gases used, and sufficiently slow reaction rates that measured concentrations at the measurement site are above the limit of detection of the measurement system.…”
Section: Theorymentioning
confidence: 57%
“…This is an advantage for the comparison of the two data sets, although newest developments use two-dimensional gas chromatography (GC×GC) to separate overlapping peaks (e.g. Bartenbach et al, 2007). Trapping efficiency was below 100% for the C 2 hydrocarbons, which however was corrected by a specific calibration factor.…”
Section: Hydrocarbon Measurementsmentioning
confidence: 99%